| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the transmission characteristic of a transmitter-receiver from being remarkably deteriorated when the reception quality is deteriorated and an optimum reception weight cannot be generated. <P>SOLUTION: A reception quality measurement circuit 107 measures the reception quality of received data outputted from an adder 103. When the reception quality measured by the reception quality measurement circuit 107 is lower than a threshold, a transmission antenna weight control circuit 108 outputs a stored transmission antenna weight, that is, a transmission antenna weight W" when the reception quality exceeds the threshold to multipliers 106<SB>1</SB>to 106N in place of a transmission antenna weight W' outputted from an antenna weight conversion circuit 105. <P>COPYRIGHT: (C)2004,JPO |
